This is a quote from NZ Govt Medsafe, the medicines regulator of NZ.

"If consent can be granted, this will either be full consent under section 20 of the Medicines Act 1981 or provisional consent under section 23. We expect that most vaccines will be granted provisional consent because data to support the longer-term safety and efficacy of COVID-19 vaccines is not yet available."

https://www.medsafe.govt.nz/COVID-19/vaccine-approval-process.asp